“Just as Schwab Mutual Fund OneSource changed the landscape for investors and advisors by providing convenient, affordable access to leading mutual funds when Chuck Schwab introduced it 20 years ago, we believe Schwab ETF OneSource will deliver enormous benefit and change the way our clients buy and sell ETFs,” said Walt Bettinger, CEO of Charles Schwab (SCHW), in a statement.

If you want one access to one of the broadest lists of commission-free ETFs, TD Ameritrade (AMTD) is a good place to start. The brokerage firm offers up 100-plus ETFs on its list.

The broker has commission free trades on 47 iShares, 32 Vanguard ETFs and 12 State Street Global (SPDR) ETFs. While you won’t find huge-volume ETFs like the SPDR S&P 500 ETF (SPY) on the list, you’ll still get a great choice in lesser-known funds covering important asset classes, like international TIPS (WIP), international real estate (RWX), and international small-cap stocks (VSS).

Customers of Fidelity Brokerage Services can buy and sell 30 iShares ETFs without incurring any transaction fee. The funds cover a broad swath of investment categories, like domestic and international stocks, along with fixed income.

Vanguard brokerage clients can make commission-free trades on the company’s entire lineup of Vanguard ETFs. This includes core portfolio funds like the Vanguard Total Stock Market ETF (VTI), Vanguard Total Market Market ETF (BND) and the Vanguard FTSE Emerging Markets ETF (VWO).

Most Vanguard brokerage clients pay $2 or $7 to trade stocks and non-Vanguard ETFs, depending on the size of their investment account. For example, a $750,000 account, dubbed Voyager Select Services, gets charged $2 per trade on stocks and non-Vanguard ETFs.

“For 35 years, Vanguard has been committed to reducing the cost of investing in mutual funds for our clients. Now, Vanguard is expanding our low-cost commitment to ETFs,” said CEO Bill McNabb, in a statement. “Importantly, Vanguard offers a greater choice of ETFs with expense ratios that are among the lowest in the industry.”

One other key differentiator with Vanguard’s ETF platform is that the same commission rates apply whether you trade online (through Vanguard.com) or by phone with a brokerage associate.

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